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The father of slain 9-year-old Tyshawn Lee was arrested this weekend in connection with a shooting that injured three people. NBC 5's Christian Farr has the latest details (Published Sunday, March 13, 2016)

Hours after a judge ordered Tyshawn Lee's alleged killer held without bail Tuesday, the father of the slain 9-year-old allegedly shot three people on Chicago's South Side, according to police.

Tyshawn was gunned down in a Chicago alley last fall as part of a gang retaliation, authorities said. His suspected killer, Dwright Boone-Doty, 22, was charged with murder and appeared in court Tuesday, where a judge ordered him held without bail.

The same day, around 5:45 p.m., Tyshawn's father, 25-year-old Pierre Stokes, opened fire on two men who were arguing in the 7900 block of South Ashland Avenue in the Auburn Gresham neighborhood, police said.

A 30-year-old man was shot in the right arm and a 31-year-old man suffered a gunshot wound to the left forearm, according to police. Both were taken to Christ Hospital in stable condition.

Police originally said only the two men were shot, but later said a 29-year-old woman suffered a graze wound to the face and refused treatment.

Anthony Guglielmi of the Chicago Police Department identified Stokes as the shooter in a statement Sunday morning. Stokes was charged with three counts of aggravated battery with a firearm and one count of unlawful use of a weapon by a felon.

"It's confirmed, he was picked up Friday and charged with the shooting. This represents the challenge that police grapple with. We are aggressively working to hold gun offenders and gang members accountable," Guglielmi said in the statement.

He added that Stokes has continued his involvement in "the same gang activity that started this initial cycle of violence" even after he "ultimately suffered an unspeakable loss with the calculated execution of his son."

It wasn't immediately known if Stokes has hired an attorney.

Police said Tyshawn was killed as part of a gang war between a faction of the Black P-Stones and the "Killaward" faction of the Gangster Disciples. Stokes and Boone-Doty are members of rival gangs, prosecutors said.

'Executioner' in 9-Year-Old's Fatal Shooting Identified

A 22-year-old has been charged in the execution-style shooting of Tyshawn Lee, as well as the death of a woman killed before the 9-year-old. NBC 5's Natalie Martinez reports.

(Published Monday, March 7, 2016)

After the killing, Boone-Doty allegedly told police he had planned to kidnap and torture Tyshawn before killing him, law enforcement officials revealed Tuesday. Boone-Doty ultimately lured the 9-year-old into an alley and shot him numerous times at close range.

"This was a targeted assassination," said interim Police Supt. John Escalante. "These are calculated killers whose actions define the words brutality and cowardice."

Cook County State's Attorney Anita Alvarez said Tyshawn's killing was "among the worst that I have ever seen in my more than 30 years as a prosecutor."

Officials said Boone-Doty and two others accused in the case, including 27-year-old Corey Morgan, had planned to go on a killing spree after Morgan's brother was fatally shot on Oct. 13, 2015. Morgan has repeatedly denied having any involvement in Tyshawn’s killing.

Prosecutors said Boone-Doty, Morgan and a third person went out "daily, armed with guns, looking to retaliate." They said Boone-Doty had planned to go back to the park where Tyshawn was playing and "shoot it up," allegedly saying he "should have killed all the kids in the park."

Boone-Doty was in the process of writing a rap song about the killing, prosecutors said.

He has also been charged in a separate gang-related shooting, which left Brianna Jenkins dead and Deshari Bowens injured on Oct. 18, the state's attorney's office said. He faces charges of first-degree murder, attempted first-degree murder and aggravated battery with a firearm.

In total, Boone-Doty has been charged with five felony offenses in connection with three separate cases. He was already in custody on unrelated gun charges, according to county records. The records did not indicate if Boone-Doty had an attorney.

Guglielmi said the police department is working to curb gang violence by opening members' eyes to the "casualties of that lifestyle" and offer them education and job placement opportunities.